I really want trickroom to pop in here and make a gigantic post about the greatness of Multiscale Lugia.
I sadly don't have the time to make a gigantic post. Multiscale Lugia is actually a huge advantage when I used it way back in the early generation 5 when many people are playing DW Ubers. The only time I missed Pressure, was when I was walling Ho-Oh. Ho-Oh beats Multiscale Lugia (assuming no Toxic) but not Pressure.
Multiscale is easier to abuse than you think, because this is LUGIA. If Dragonite can abuse it so effectively, why not Lugia, who is way bulkier and faster. Lugia also forces many threats giving you chance to Roost back up to 100%.
Specs Water Spout fails to KO Lugia after Kyogre takes Stealth Rock damage. Even if Lugia takes Stealth Rock damage, lets not forget Lugia is naturally faster than Kyogre, so it can Roost/Recover back up to 100% before Kyogre can land a killing blow. Assuming no crits, Kyogre is owned.
Also about the Kyurem-B hype: Lugia beats Kyurem. Ice Beam doesn't not OHKO, neither does Fusion Bolt does not do that much Lugia to be honest. Lugia can just put up a Reflect/Light Screen and react accordingly even with TerraVolt neutralizing Multiscale. Roost cancels out Lugia's weakness to Ice so good luck killing it with non-Scarf Kyurem-B.
Originally Posted by Fat Rayquaza
Your only chance at beating either of them with Lugia is running a dual screen set
Really? Lugia can run Light Screen, Roost, Reflect and Dragon Tail/Whirlwind. Lugia deals damage through entry hazards, and it can just drop Toxic if you have other mons to use it or Toxic Spikes.